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122033021221021 = 853286541499277
BaseRepresentation
bin11011101111110100000110…
…111000010111100010011101
3121000002020120001212201101111
4123233310012320113202131
5111443342111413033041
61111313110201142021
734463411012346511
oct3357640670274235
9530066501781344
10122033021221021
1135979a060a30a9
121182a997a8a911
135312883c5a781
14221c6032d6141
15e1955b5e3981
hex6efd06e1789d

122033021221021 has 8 divisors (see below), whose sum is σ = 122176755641304. Its totient is φ = 121889288374080.

The previous prime is 122033021221009. The next prime is 122033021221037. The reversal of 122033021221021 is 120122120330221.

It can be written as a sum of positive squares in 4 ways, for example, as 37711758180100 + 84321263040921 = 6140990^2 + 9182661^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122033021221021 - 25 = 122033021220989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122033021220983 and 122033021221001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122033021281021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244169835 + ... + 244669111.

It is an arithmetic number, because the mean of its divisors is an integer number (15272094455163).

Almost surely, 2122033021221021 is an apocalyptic number.

It is an amenable number.

122033021221021 is a deficient number, since it is larger than the sum of its proper divisors (143734420283).

122033021221021 is an equidigital number, since it uses as much as digits as its factorization.

122033021221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786671.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 122033021221021 its reverse (120122120330221), we get a palindrome (242155141551242).

The spelling of 122033021221021 in words is "one hundred twenty-two trillion, thirty-three billion, twenty-one million, two hundred twenty-one thousand, twenty-one".

Divisors: 1 853 286541 499277 244419473 425883281 143063330857 122033021221021